Joined: Jun 2017

Posts: 159

Likes: 0

From: Yakima, WA Pacific Northwest

Year: 1990

Engine: 4.0 renix

im not sure why this happen I'm not every well versed in electrical stuff but I got power back my acc and run circuits and about 30 to 45 seconds after I fired up the engine I had ALOT of smoke coming from under the center console. The wire that melted come from a bundle of wires running on the floor in the back and goes up the molding right by the passenger door to the roof of the vehicle. The wires for the power seats are in this same bundle...where do I start??????

Joined: Dec 2015

Posts: 3,038

Likes: 338

From: PA

Year: 1997

Model: Cherokee

Engine: 4.0L

Joined: Jun 2017

Posts: 159

Likes: 0

From: Yakima, WA Pacific Northwest

Year: 1990

Engine: 4.0 renix

I'll post some this afternoon when I get off work. And correction the bundle of wire I mentioned runs on the floor and up the back of the door DRIVER side...I assume the first plan of attack would be figuring out what circuit the melted wire is on

Joined: Jun 2017

Posts: 159

Likes: 0

From: Yakima, WA Pacific Northwest

Year: 1990

Engine: 4.0 renix

Btw my xj is a 1990 has power options door locks, seats, mirrors...and not sure if it's related but the dome fuse will pop intermittently

Joined: Apr 2009

Posts: 18,786

Likes: 14

From: CT.

Year: 88

Model: Comanche (MJ)

Engine: 4.0 HO

Joined: Jun 2017

Posts: 159

Likes: 0

From: Yakima, WA Pacific Northwest

Year: 1990

Engine: 4.0 renix

some lights work (minus the cargo light in back it's never worked) the dome fuse popped every time I put the battery cables on before I unplugged the cigar lighter and now it's just intermittent.

Joined: Jun 2017

Posts: 159

Likes: 0

From: Yakima, WA Pacific Northwest

Year: 1990

Engine: 4.0 renix

Dome lights work** auto correct is going to give me an aneurism

Joined: Jun 2017

Posts: 159

Likes: 0

From: Yakima, WA Pacific Northwest

Year: 1990

Engine: 4.0 renix

This is right behind the drivers seat..melted wire running under the center console.
This is in front of the bench seat runs on the floor to the back driver side door. Haven't tore the molding off yet but feels like it runs up to the fuse box

Joined: Jun 2017

Posts: 159

Likes: 0

From: Yakima, WA Pacific Northwest

Year: 1990

Engine: 4.0 renix

the red and black wires with true connector at the end is the power n ground for the seats

Joined: Jun 2017

Posts: 159

Likes: 0

From: Yakima, WA Pacific Northwest

Year: 1990

Engine: 4.0 renix

And please excuse the mess lol

Joined: Jun 2017

Posts: 159

Likes: 0

From: Yakima, WA Pacific Northwest

Year: 1990

Engine: 4.0 renix

So melted wire came from the ignition switch..it WAS grey with a red line..needless to say the switch and connector are no longere

Joined: Jun 2017

Posts: 159

Likes: 0

From: Yakima, WA Pacific Northwest

Year: 1990

Engine: 4.0 renix

it's probably an 18 gauge wire

Joined: Jun 2017

Posts: 159

Likes: 0

From: Yakima, WA Pacific Northwest

Year: 1990

Engine: 4.0 renix

my diagram says that's to the parking brake switch...what the hecker???

Joined: Jun 2017

Posts: 159

Likes: 0

From: Yakima, WA Pacific Northwest

Year: 1990

Engine: 4.0 renix

Ok so I'm a little confused..the wire from the ignition switch to the E brake switch is the culprit and it got hot super quick. Non of the other wires SEEM to be affected. My first thought is a short to ground on or before the switch. Is there a more likely problem?? Could I get lucky and have it be that simple lol

Joined: Jul 2011

Posts: 560

Likes: 26

From: West Covina, Ca.

Year: 1988

Model: Cherokee

Engine: 4.0